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  1. No Access

    Article

    The Effect of Zr Incorporation Caused by Ball Abrasion in a Milled Fe-Y2O3 Model Alloy

    Y-O nanoparticles which are homogeneously distributed in the matrix can improve the thermal properties of steels. Several studies of mechanically alloyed steels showed that especially Y-Ti-O particles can caus...

    Gerald Ressel, Sophie Primig, Harald Leitner in Metallurgical and Materials Transactions A (2014)

  2. No Access

    Article

    Formation and Growth Kinetics of Reverted Austenite During Tempering of a High Co-Ni Steel

    It is well known that high Co-Ni steels exhibit excellent toughness. Since the good toughness in these steels is supposed to be related to thin layers of austenite between martensite crystals, this work presen...

    Marina Gruber, Gerald Ressel… in Metallurgical and Materials Transactions A (2016)

  3. No Access

    Chapter and Conference Paper

    Different Cooling Rates and Their Effect on Morphology and Transformation Kinetics of Martensite

    The characteristics of martensitic transformation is strongly dependent on the cooling rate applied to the material. For a quenched and tempered steel, the martensitic transformation occurs below 500 °C, but i...

    Annika Eggbauer (Vieweg), Gerald Ressel… in Proceedings of the International Conferenc… (2018)

  4. No Access

    Article

    Complementary Thermal Analysis Protocols for the Investigation of the Tempering Reactions of a Carbide-Free Bainitic Steel

    Austenite corresponds to a major constituent of carbide-free bainitic steels required to obtain enhanced deformability assisted by transformation-induced plasticity. It is, therefore, of foremost importance to...

    Thomas Klein, Marina Lukas, Phillip Haslberger, Bernhard Friessnegger… in JOM (2019)

  5. No Access

    Article

    In situ analysis of the effect of high heating rates and initial microstructure on the formation and homogeneity of austenite

    Decreasing processing time of a quench and temper heat treatment is of high interest for industry due to the possibility of cost reduction. One option to reduce processing time is to shorten the austenitizing ...

    Annika Eggbauer, Marina Lukas, Gerald Ressel… in Journal of Materials Science (2019)

  6. No Access

    Article

    Redistribution of C in a Martensite/Austenite Assembly Resulting from Q&P Processing: Computational Modeling Supported by Experiments

    Advancement of the Q&P process—a suitable means for austenite stabilization—requires modeling techniques that accurately predict the C redistribution process. In the current work, thermokinetic modeling of the...

    Thomas Klein, Marina Lukas, Bernhard Sartory… in Metallurgical and Materials Transactions A (2019)

  7. No Access

    Article

    The Effect of Cryogenic Mechanical Alloying and Milling Duration on Powder Particles’ Microstructure of an Oxide Dispersion Strengthened FeCrMnNiCo High-Entropy Alloy

    Oxide dispersion strengthened materials are commonly used for high-temperature applications. Among other possibilities, these oxides are mostly introduced by mechanical alloying comprising cold welding and fra...

    Michael Mayer, Gerald Ressel, Jiri Svoboda in Metallurgical and Materials Transactions A (2022)

  8. No Access

    Article

    Influence of Tempering on Macro- and Micro-Residual Stresses and Yield Stress of Ferritic-Pearlitic Drawn, Coiled, and Straightened Wires

    Residual stresses caused by different deformation steps during the processing of wires significantly affect the mechanical properties of the final product. However, in the literature, there is a lack of detail...

    Marina Lukas, Michael Mayer, Andreas Stark… in Metallurgical and Materials Transactions A (2022)

  9. No Access

    Article

    Detwinning Phenomenon and Its Effect on Resulting Twinning Structure of an Austenitic Hadfield Steel

    Hadfield Steel shows high strain hardening which can be linked to its ability to form twins during mechanical loading. Twinning in Hadfield Steel is well documented, however, detwinning in Hadfield Steel is on...

    Marina Lukas, Gerald Ressel, Carola Hahn… in Metallurgical and Materials Transactions A (2023)

  10. Article

    Open Access

    Design of Laves phase-reinforced compositionally complex alloy

    Topologically close-packed (TCP) phases such as Laves phases are usually considered to harm the mechanical properties of classical superalloys for high-temperature applications. However, if an optimal fraction...

    Gerald Ressel, Florian Biermair, Simon Fellner, Christoph Gammer… in Scientific Reports (2023)

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  11. No Access

    Article

    Tailoring Primary Carbide Architecture of High-speed Steels by Borderline Heat-treatments

    High-speed steels exhibit a good combination of high strength with reasonable toughness when compared to hardmetals. These mechanical properties enable the excellent performance of high-speed steels as tool ma...

    Daniel Nistelberger, Lukas Walch… in BHM Berg- und Hüttenmännische Monatshefte (2024)

  12. No Access

    Article

    Advances in Materials for Hydrogen Application

    Hydrogen is envisioned as one of the most promising future energy carriers for a sustainable economy. For the large-scale use of hydrogen, however, safe and cost efficient new materials for the transport and s...

    Philipp Hammer, Michael Mayer, Jiri Svoboda… in BHM Berg- und Hüttenmännische Monatshefte (2024)

  13. No Access

    Article

    Solutions to Complex Material-related Questions via Advanced Material Characterization Techniques

    When using man-made devices of everyday life such as cars, planes, or smartphones, the general public commonly does not consider the relevance of material characterization techniques. When pushing down the “ga...

    Thomas Klünsner, Gerald Ressel, Paul Angerer… in BHM Berg- und Hüttenmännische Monatshefte (2024)